Foundation schools may decide to do building work without getting local authority agreement - but theycannot raise a loan on the buildings and of course it means they have to put right anything that goes wrong.
According to Catherine Crump of the American Civil Liberties Union, "The police can ask you to unlock the phone -- which many people will do -- but they almost certainly cannot compel you to unlock your phone without the involvement of a judge, " she said.
What's more, they will have to do all this without the safety net of emergency rescue support, as aircraft cannot reach inland during the winter months.